Ammonium dichromate

CAS 7789-09-5

U.S. production volumes are classified as confidential business information.

Molecular structure of 7789-09-5 — 2 NH₄⁺

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$8M

Top sourceAustria 85%

At least one company claimed its 2019 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 284150 · basket

EPA reports by year

2019: US production Confidential · Imports Confidential

These shares come from HS customs code 284150, which covers 22 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

AT 85%AustriaIT 7%ItalyCN 6%ChinaIN 1%IndiaCO 1%Colombia

Switzerland
United Kingdom
Germany

EPA-registered importers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Basf Se · DE Germany

Basf

Why It Matters

Sectors

Metals & Mining

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

•Surface modifier in Fabricated Metal Product ManufacturingProcessing—incorporation into article

Vendor Pricing

$0.69/gAK Scientific, Inc.

CountryUnited States

Pack$69.00 / 100 g

Purity99.5%

Vendors1 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

Chemical Identity

CAS7789-09-5

PubChem CID24600

DTXSIDDTXSID70872953

FormulaCr2H8N2O7

Mol. Weight252.07 g/mol

SMILES[NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-]

Data Sources

EPA CompTox (DSSTox) · DTXSID70872953Retrieved 2026-04-06
PubChem · compound 24600Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Ammonium dichromate (CAS 7789-09-5) https://chemicalindependence.com/chemical/7789-09-5/ EPA CompTox (DSSTox): DTXSID70872953. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID70872953 PubChem: 24600. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/24600 EPA Chemical Data Reporting: 7789-09-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7789-09-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 284150 for CAS 7789-09-5. Reporting year: 2024. https://usatrade.census.gov/